Drag-conveying chain



May 18. ,11926. 1,585,506

' L. E. M FADYE N DRAG couvmme cum:

Filed dbt. 'e, 1925 gwuvmtom Patented May 18, 192% UNHTEED LOUDON E.IrIAoFADYEN, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR T0 TAYLOR-WI-IARTON IRON AND STEEL COMIPANY, OF HECTH BRIDGE, NE? JEESEY, A COR-PORATION OF NEW JERSEY.

DRAG-CUNVEYING CHAIN.

Application filed October 6, 1925.

My invention relates to conveyors of the dragline type and particularlyto such as find their chief utility in cement mills and other placeswhere material is handled in bulk. Conveyers of this type comprisepivotal links operating as a strand in a troun'h or way and equippedwith a drop pan bottom closure adapted and arranged for selectiveoperation to deliver the load at desired points along the route. Theunits suffer heavy abrasive wear and shock and have to be replaced aftercomparatively short service.

The object of my invention is to simply the construction of the unitswhereby they may be integrally constructed of shock and wear resistingmaterial such as, for example, manganese steel.

The nature, characteristic features and scope of the invention will morereadily be understood from the following description taken in connectionwith the accompanying drawing, forming a part hereof, wherein- .Figure 1is a plan view of a section of conveying chain embodying myimprovements.

Figure 2 is a side clevational view, partly in section, of the same.

According to my invention the chain units are preferably constructed ofmanganese steel. They may, however, be constructed of other metalcapable of producing sound sturdy castings. But manganese steelnotwithstanding its greater initial cost is more economical because setits greater service factor.

The chain units are integrally formed with side bars 5 joined bytransverse bars 6 and 7. The side bars have bottom edge marginaloii'sets or drag -flanges 8 and stif fening ribs 9. The chain units arelongitudinally inclined, as usual, to provide for linkage connection ofmated ends of adjoining' units. F or this purpose the side bars 5 havecored openings 10 for the reception of a pintle 11, which passes throughand provides hinge connection for the transverse bar 7 of the adjoiningchain unit.

Serial No. $0,792.

The transverse bars 7 are of reinforced construction to provide fordepending lugs 12 formed with eyes, or hollow bosses 13 for thereception of a pintl-e 14twhich hingedly connects the drop pan or bottomclosure 15. The latter by preference is also constructed of manganesesteel and has a reinforced front or lip 16.

As is well understood by those familiar with the handling of clinker andother material in bulk, the chain is operated in a trough 17. The troughis ordinarily equipped with a slide (not shown) which can be manipulatedto expose openings 18 and permit the swinging pan or floor plate to dropand discharge its load at ccsir-ec points. i

l-Iaving described my invention, I claim.

1. A dragline or chain conveyor whereof the units are of matedconstruction of the integral type and are joined by linkage provisions,said units consisting of side bars and transverse bars, the side barshaving; bottom edge marginal ofi sets and stiffening ribs and thetransverse bars having in tegra-l linkage provisions for swinging lioorplates, and floor plates operatively connected therewith.

2. A conveyor of the linkage type whereof the units are integrallyconstructed of manganese steel and reinforced for the carriage ofswinging floor plates, said units having depending lugs with alinedhollow bosses, a manganese steel floor plate having hollow bosses whichmate with the first mentioned bosses, and a pintle connecting the twosets of bosses. T

3. A unit for conveyors of the linkage type, embodying a chain link ofthe integral construction type formed with depending lugs having hollowbosses, a floor plate having a reinforced front or lip and hollowbosses, and a pintle connecting the two sets of bosses.

In testimony whereof I afix my signature.

LOUDON E. MAoFADYEN.

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